Aggressive Cancer Performs Strange Disappearing Act

During a pickup basketball game one afternoon, Daniel — healthy, fit and in his mid-30s — heard his friend utter the words he would never forget. “Dude, what’s that black blotch on the back of your shoulder?” A few weeks later, Daniel was diagnosed with an aggressive form of skin cancer, malignant melanoma.
Through a surgical procedure known as Mohs’ micrographic surgery, his doctors removed the cancerous cells. But about two months later, he noticed a lump in...

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